Product category: WAW cylinder top-mounted model—A model

Product name: Microcomputer controlled electro-hydraulic servoUniversal testing machine— WAW cylinder top-mounted series

Product model: WAW-2000A/3000A/4000A/5000A (2000-5000kN)

product manual:

WAW-A type microcomputer-controlled electro-hydraulic servo universal testing machine adopts the traditional top-mounted cylinder of the testing machine industry. This model is still selling well after a hundred years. The unique cylinder ball head structure ensures its unparalleled test performance. Electro-hydraulic servo hydraulic universal testing machine is developed based on years of electro-hydraulic servo technology application experience, perfectly deduces the electro-hydraulic servo technology, so that the testing machine system can work fully automatically and easily complete the control of stress and strain. Based on various application requirements, For batch testing, each unit of the testing machine system is specially designed to fully realize the concept of " efficient testing " . It has strong adaptability to different materials and different test methods, and is especially suitable for automatic tensile, compression, bending, shearing, low cycle cycle tests on various metal and non-metal materials. It is ideal for various research institutions and industrial and mining enterprises. The material performance test equipment.

1. The functions and characteristics of the microcomputer controlled electro-hydraulic servo universal testing machine:

1. Mainly used for tensile, compression, bending, shearing and other tests of metal materials, adding simple accessories and devices, and also for testing cement and concrete.

2. The testing machine uses a microcomputer to control a high-precision electro-hydraulic servo valve and drives a precision hydraulic cylinder to realize automatic control of multiple modes such as constant rate testing force, constant rate displacement, and constant rate deformation, and complete the stretching and compression of the sample The flexural and flexural test meets the requirements of the national standard GB/T228-2008 "Metallic Material Tensile Test Method at Room Temperature". Adding accessories can complete the test requirements of other various materials.

3. The main engine of the testing machine adopts the cylinder top-mounted type; the tensile space is located under the main engine, and the compression, bending and shear test space is located between the beam above the main engine and the test bench. The lifting of the lower jaw seat is driven by a motor, a worm gear, and a nut screw pair to realize the adjustment of the stretching space. The upper jaw seat is connected with the piston through a tie rod and a small beam, and the compression space is adjusted through hydraulic transmission. It is more suitable for testing long specimens or large deformation specimens than the tensile space of the under-cylinder main engine. It is an ideal testing equipment for industrial and mining enterprises, scientific research units, colleges and universities, engineering quality supervision stations and other departments. The hydraulic servo loading system ensures that the system is high-precision, high-efficiency, low-noise, fast response, and realizes automatic control of loading and reversing of the test.

4. Microcomputer control and processing system:

4.1 Electro-hydraulic servo control system: accurately complete the setting of test parameters during the test process, automatic control of the test process, data acquisition, processing, analysis, storage and display (test data includes: upper and lower yield points, tensile strength, breaking strength, Elastic modulus, elongation at each point, non-proportional elongation, etc.). In addition to the basic closed-loop control of test force, specimen deformation, piston displacement and test progress, and constant velocity stress, constant velocity strain, constant velocity test force, constant velocity displacement, test force retention, and displacement retention control functions, it also With convenient and quick open loop control function.

4.2 Screen display function of test force, peak value, sample deformation, piston displacement, test curve, full keyboard input operation and intelligent setting of control mode expert system, which realizes arbitrary setting of control mode and smooth switching between various control modes. Make the system have the greatest flexibility. The loading and unloading is stable, the program can be controlled during the test, and the "shortcut" operation of the fixed program is also available, and the test speed can be flexibly adjusted by the mouse;

4.3 The test data can be automatically collected and processed according to the requirements of national standards such as GB228-2008 "Metal Tensile Test Method for Room Temperature Materials". (There are a variety of test methods and standards in the data board, which can complete the experiment of a variety of materials) The test process can simulate reproduction and re-analysis of test data, test curve amplification, comparison, and traversal. The test curve can choose the coordinate axis arbitrarily, and can zoom in and out freely;

4.4 Test software based on Windows operating system, the combination of reliable hardware support and software support for amplifier zeroing and sensor calibration makes the quality more perfect; it can implement sub-authority management for users, and has multiple graphic display windows and unit conversion functions ；

4.5 The test data is managed in a database, and network database communication and management can be carried out;

4.6 The test machine has the ability to expand and update;

5. Protection function:

5.1 Oil cylinder limit protection;

5.2 Hydraulic system overload and overflow protection;

5.3 Test force overload protection;

5.4 Overcurrent and overvoltage protection;

5.5 Safety protection when the sample is broken;

5.6 Automatic protection at the end of the test.

6. The integrated design of oil source, control cabinet and computer desk forms a control cabinet. The oil source, strong electric board, and computer host are installed in the control cabinet. On the control counter are monitors and printers. This not only ensures the stability of the hydraulic system, but also has a good overall effect. The humanized appearance design of the control cabinet console is convenient for operation and novel appearance. The integrated oil source control cabinet can be used for electro-hydraulic servo universal testing machines with different tonnages from 100kN to 2000kN.

2. Specifications and technical parameters of the microcomputer-controlled electro-hydraulic servo universal testing machine